<template>
  <div>
    <h1>{{id ? '编辑' : '新建'}}广告位</h1>
    <el-form label-width="120px"  @submit.native.prevent="save">
      <el-form-item label="名称">
        <el-input v-model="model.name"></el-input>
      </el-form-item>
      <el-form-item label="广告">
        <el-button @click="model.items.push({})"><i class="el-icon-plus"></i> 添加广告</el-button>
        <el-row type="flex" style="flex-wrap:wrap;margin:20px 0;">
          <el-col v-for="(item,index) in model.items" :key="index">
            <el-form-item label="跳转链接">
              <el-input v-model="item.url"></el-input>
            </el-form-item>
            <el-form-item label="图片" style="margin:0.6rem 0;">
              <el-upload
                class="avatar-uploader"
                :action="$http.defaults.baseURL + '/upload'"
                :show-file-list="false"
                :on-success="res => $set(item, 'image', res.url)">
                <img v-if="item.image" :src="item.image" class="avatar">
                <i v-else class="el-icon-plus avatar-uploader-icon"></i>
              </el-upload>
            </el-form-item>
            <el-form-item>
              <el-button type="danger" @click="model.items.splice(index,1)" style="position:absolute;bottom:30px;right:250px">删除</el-button>
            </el-form-item>
            <el-form-item>
              <div class="fengexian"></div>
            </el-form-item>
          </el-col>
        </el-row>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" native-type="submit">保存</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
export default {
  props: ['id'],
  data () {
    return {
      model: {
        items: []
      }
    }
  },
  methods: {
    async save () {
      if (this.id) {
        await this.$http.put(`/rest/ads/${this.id}`, this.model)
      } else {
        await this.$http.post('/rest/ads', this.model)
      }
      this.$router.push('/ads/list')
      this.$message({
        message: '保存成功',
        type: 'success'
      })
    },
    async fetch () {
      const res = await this.$http.get(`/rest/ads/${this.id}`)
      this.model = Object.assign({}, this.model, res.data)
    }
  },
  created () {
    // console.log(this.id)
    this.id && this.fetch()
  }
}
</script>

<style>
.avatar-uploader .el-upload {
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.avatar-uploader .el-upload:hover {
  border-color: #409EFF;
}
.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 100px;
  height: 100px;
  line-height: 100px!important;
  text-align: center;
}
.avatar {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 6px;
}
.fengexian {
  border-bottom: 2px dotted #ccc;
  width:100%;
  height:0;
  margin-bottom: 50px;
}
</style>
